| 摘要 |
<p>A pushchair frame comprising at least one first tubular member (18), and at least one second tubular member (20), where said at least one first tubular member (18) is axially moveable relative to said at least one second tubular member (20). The pushchair frame further comprises at least one third tubular member (22), and an engagement mechanism (24) that rotatably engages said at least one third tubular member (22) with said at least one first tubular member (18). Said engagement mechanism (24) includes a head member (40) that is rotatably fixed relative to said at least one third tubular member (22), where circumferential engagement of said head member (40) causes rotation of said at least one third tubular member (22) relative to said at least one first tubular member (18). Axial movement of said at least one first tubular member (18) relative to said at least one second tubular member (20) causes circumferential engagement of said head member (40).</p> |
